I don't think those ratings are defaulted. Otherwise, every team would be the exact same as far as rebounding if it was default. The game ratings show that he is a slightly better rebounding team that his opponent and yet he got killed on the boards. Could it be because you picked his pace wrong? Did the game engine punish you for that wrong guess in the form of a rebounding penalty? It's just odd to see such a gap.
My thoughts exactly. I mean, I guess if ratings state the inherent strength of the team on an average night with that lineup, then this kind of makes sense. Things can always go one way or the other when left to chance and 'how the ball bounces'. However, I always thought that the ratings had more to do with how your team performed in the game. I could be totally wrong there.